{"id":20715,"date":"2026-04-13T08:30:18","date_gmt":"2026-04-13T07:30:18","guid":{"rendered":"https:\/\/cabd.es\/investigation\/departments\/cell-biology-and-biotechnology\/dr-pablo-mier-munoz\/"},"modified":"2026-06-11T07:13:48","modified_gmt":"2026-06-11T06:13:48","slug":"dr-pablo-mier-munoz","status":"publish","type":"page","link":"https:\/\/cabd.es\/en\/investigation\/departments\/evolutionary-dynamics\/dr-pablo-mier-munoz\/","title":{"rendered":"Dr. Pablo Mier Mu\u00f1oz"},"content":{"rendered":"

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Evolutionary Dynamics<\/p>\n

Evolutionary Analysis of Low Complexity Regions<\/h1>\n

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Dr. Pablo Mier Mu\u00f1oz<\/h4>\n

Researcher<\/p>\n

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SUMMARY<\/h2>\n
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Visit the\u00a0page of the LCE group<\/a>\u00a0for more information.<\/p>\n

Low Complexity Regions (LCRs) are proteins regions where the frequency distribution of amino acids deviates from the common amino acid usage. Residues in LCRs have been estimated to represent 20% and 8% of all known sequences of eukaryotes and prokaryotes, respectively. In the definition of LCRs, multiple concepts related to sequence composition, periodicity and structure have been used. Regarding amino acid composition, while there is a general notion that LCRs in proteins should have an excess of one or a few types of amino acid residues, there is no consensus about which metrics are the most appropriate. Additionally, the concept of LCR is intermingled with the concept of sequence repeats. Repeats are inevitably associated with LCRs, since shorter repeats result in regions with lower amino acid diversity.
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Homorepeats, polyX or amino acid repeats, are protein motifs defined as consecutive runs of a single residue. They are the simplest LCRs and rely on a highly localized abundance of an amino acid. Any amino acid can form them, although some polyX are much more abundant than others (which also depends on the species taxonomy). They are associated with multiple functionalities, from aiding protein localization to mediating protein\u2013protein interactions. Many homorepeats have not been functionally characterized yet, despite their high abundance in eukaryotes. This makes them an interesting protein motif for a post-sequencing step in terms of proteome annotation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Five relevant publications<\/h2>\n
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